Swing door keyless locking device



July 26, 1932. R. w. BRONSON SWING DOOR KEYLESS LOCKING DEVICE FiledMarch 8, 1952 2 Sheets-Sheet l R w o E M. Q\NQ\ \nw. W W s m. w w M M 7mJ. I y ll \THHHvHHHv I I M M w I M 1 WM W July 26, 1932. R. w. BRONSONSWING DOOR KEYLESS LOCKING DEVICE Filed March 8, 1952 2 Sheets-Sheet 2 NV E N TO R Evie/'4 M 5/14/7102:

ATTORNEY! Patented July 26, 1932 UNITE STATES PATENT OFFICE RIOHILRD W.BRONSON, OF SOUTH EUCLID, OHIO, ASSIGNOR TO THE VAN DOB-N IRON i WORKSCOMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO SWING DOOR KEYLESSLOCKING .DEVICE Application filed March 8,

This invention relates to locking means for jail doors and moreparticularly tokeyless locking means for remote operator control,especially applicable to swi'nging'jail doors.

' An object of the invention is generally to insure that a door islocked, wheneverit is closedand thecontrol mechanism is set in lockedposition, and to provide that when- I ever a door is open its controlmechanism will not indicate locked.

Another object is to means for the door.

' The exact nature of this invention together 'withfurther objects andadvantages thereof will be apparent from the following description takenin connection with the accompanying drawings, in which Fig. 1 is a viewin eleprovide novel latch vati'on showing a cell front wall in which anembodiment of my invention is incorporated, parts being brokenaway toshow details of construction; Fig. 2 is adetail as in the horizontalplane of line 2 -2, Fig. 1, and including broken lines to indicateoperation of the parts there shown; Fig. 3 is an enlarged detail inhorizontal section as in the plane of line 3-3, Fig. 1; Fig.4 is acorrespondingly,

enlarged sectional elevation as in the plane of line 44, Fig. 3; Figs.5, 6 and 7 are further enlarged sections in the same plane but viewedfrom the opposite direction, showin the parts in different relativepositions; and

Fig. 8 is a section as in the plane of line 8-8, Fig. 5.

With reference now to the drawings, 1 is the first door of a row ofcells indicated by the cell front appearing in Fig. 1. The door is aswinging door hinged to move about the rod'2 to open outwardly from andclose against a hollow pilaster 3. r V Q A look bolt 4 is mounted. inthe pilaster 3 for sliding movementthrough an opening therein to engagean opening 5 in the edge frame member 6 of the door, to lock the doorinclosed position, as indicated in Fig. 3.

Means are provided for remote operator, control of said lock bolt, asfrom a control lever 7 at the end of the cell row. As indicated,'suchmeans comprises a bell crank 8 having one arm associated'with thelock bolt 4 and the other connected to a pull. rod 9 extending 1932.Serial No. 597,509.

bolt outwardly locked position; I Means are provided, however, forpreventmg movement of the lock bolt to locked position except when thedoor is closed and conseguletntly in a position to be so locked by theTo this end I arrange a bar 14 within the pilaster for vertical slidingmotion along the pilaster wall adjacent the door. This bar may bemounted by means of a plurality of slots 15 each about a fixed pin 16.The bar is provided with an opening 17 to receive the bolt 4, and themounting of the bar is such that it may have a lower position whereinthe lock bolt opening in the pilaster wall is masked by the bar, and anupper position wherein the openings in the bar and in-the pilaster arealigned to receive the lock bolt. This latter uncovering position isindicated in Figs. 1, 3, 4, 5 and 8. I

The bar 14 is balanced to its lower or masking position by its ownweight and preferably also by a spring 18; so that whenever the lever 7is manipulated to withdraw the lock bolt 4, the bar 14 will be releasedby its control mechanism to drop to masking position provided tongue 20is partly or wholly Y withdrawn, masking the bolt opening in the 90pilaster 3 and preventing return of the bolt to locked position. Theparts are so proportioned and. arranged that the withdrawing stroke ofthe lock bolt is suflicient for this purpose. 95

Means are provided for raising the bar 14 to uncover the lock bolt asthe door closes. Such means include a bevel or cam surface 19 as on thebar 14, and a cooperative tongue 20 mounted on the edge of the door 1 toenter I an opening 21 in the pilaster as the door closes, these partsbest,appearing in Figs. 4-8 inclusive. Thus except when the door isfully closed and in a' position to receive the lock bolt, thebar 14 willbe positioned to prevent the lock bolt from projecting from thepilastegthe barcompl'etely masking the pilaster" bolt opening until thedoor is substantially closed.

That the bar 14 cannot be raised by insertion of means through theopening 21,. I provide at the top of the bar means blocking its raisingmotion at all times except when the door is closed. For this purpose thebar 14 extendsupwardly so that its upper extremity bolt22',,anda.spring;25 is arranged'to yieldably urge the'stop bolt toa position blocking thebar 14. The rod. has: a lost motion con.- nectionas by the slot 26' soproportioned and I arranged that the "stop bolt '22 is released to theaction'of the spring 25 to assume blocking 'positioir at'all timesexceptjust as the door closes: s y

When the door is quickly closed by hand an'd immedi'ately pulled in theopening direction, the inertia of the lockbolt 4 and its-appu'rtenan'ces' mayslow down the outward travel of'thei'lock. bolt 4 sothat it enters the opening 17 in thebar 14 but'its inertia doesnot-permithit; to travel sufiiciently fast to reach'ithe opening 5" inthe door before the door is removed from the vertical plane of the lockbolt] TheYlock bolt'is thus permitted to move outwardly its full stroke,the lever, 7 will rise to the-locked position, but the door willbe open.To prevent such false indication, the'tongue'20 on the dooris provided'with'afnotch 30and the bar 14 is provided with an eXtension31 carryinga latch bolt 32 of very slight mass cooperative with the notch 30.Thelatch bolt is arranged for limited vertical'sliding motion as by theslot and pinmounting means indicated 22.1133, and 'spring 34 serves toyiel'dably' urge the latch bolt upwardly. The latch bolthas the usualbevel 35'and theparts are soproportioned and arranged thatwhen the-bar14 is in uppermost position the tongue'will" be engaged by the latchboltwhen thedoor is fully closed as in Fig, 5 {and when the bar 14 isinlowermost position Fig. 7,. the latch bolt will be withdrawn well belowthe path of the tongue. If now, the door. be quickly closed andimmediately p'ul'ledor slammed back in the open.- ing direction, thelatchv bolt 32, due, to its slight inertia. will engage the notch '30,before the door can be opened thus holding the door shut andnecessitating the latch bolt4 entering the opening 5 upon completion ofits stroke.

It Will be appreciated thatlas is usual in jails, a number of cells willbe arranged in a'row all having similar doors, each having means forcontrol from a common point. Thus in Fig. 1 o-fthe drawings, a seconddoor and its controlling mechanism is indicated, the ,partspertaining tothe second door hear,- ing; primed reference characters correspondingwith those described in connection'with the first door. The first dooris indicated as locked closed and the second doorunlocked and partlyopen.

' Operation will be apparent, assuming the door closed1butunlocked. Itslock bolt 4 has been. Withdrawn and its bar 14 is left resting upon thetongue 20 offlthe door. Thus, although its control lever 7 has beenfully depressed. to withdraw its-bolt, until the door is opened uponrelease of the lever the latter may return to locked position by. whichthe door would be indicated as again locked.

The door being unlocked, the bar 14 is free torest upon the tongue 20..As the door opens, however, thetongue 20 is withdrawn allowingithe bar-14 to drop toinasking position". Thereafter upon release of thecontrol'lever 7 the latter will not return to its upper or lockedposition, so that the door will be indicated to theaoperatorinot only asunlockedbut alsoas not closed. Also, as the door opens and immediatelythe barl4 is lowered to masking position, the stop bolt .22ym'oves, overthe bar to block itsreturn to unmask the lock bolt. H

Upon reclosing of'the door, if the control lever 7 Y be free to move,therstop bolt 22 is withdrawn, the bar 14 raised, and the bolt 4- slidilnto the door under the action of the nism is set in lockedpo'sitionand .door

is closed.

' The mechanism within the pilaster is, of course, protected againsttampering, by the pilaster itself The mechanism above the "doors, andthat connecting with the control levers is likewise. protected by theusual cover 27. I

7 What I claim is: V 1. In combination with a ail door, a lock bolt forsaid door,.a bar arranged for movement between a'position masking saidbolt to prevent'its entryinto'said door, and a pooperator-controlledmeans for sitionuncovering said bolt to allow its entry into said door,said bar being balanced to said masking position, means providing fordoor actuation of said bar to move the latter to uncovering position assaid door completes its closing movement, a stop bolt arranged to blockthe pat-h of said bar to prevent movement of the latter from maskingposition to uncovering position, means associating said stop bolt withsaid door to cause withdrawal of said stop bolt from bar-blockingposition only as the door closes, and means providing for operatorcontrol of said look bolt subject to the control had by said 2. Incombination with a swinging jail door, a lock bolt for said door, meansyieldably urging said lock bolt to locking position, withdrawing saidbolt from said position,a bar arranged for movement between a positionmasking said bolt to prevent its entry into said door, and a positionuncovering said bolt to allow its entry into said door, said bar beingbalanced to said masking position, means providing for door actuation ofsaid bar to move the latter to uncovering position as said doorcompletes its closing movement, astop bolt arranged to block the path ofsaid bar to prevent movement of the latter from masking position touncovering position, and means associating said stop bolt with said doorto cause withdrawal of said stop bolt from bar-locking position only asthe door closes.

3. In combination with a swinging jail door arranged to close against apilaster, a lock bolt for said door arranged in said pilaster to projectthrough an opening therein, a bar arranged in said pilaster for movementbetween a position masking said opening to prevent projection of saidbolt therethrough, and a position uncovering said opening, said barbeing balanced to said masking position, means providing for dooractuation of said bar to move the latter to uncovering position as saiddoor completes its closing movement, said means comprising coo erativecam parts on said bar and on said 001', said pilaster having an openingto allow cooperation of said cam parts, a stop bolt arranged to blockthe path of said bar to prevent movement of the latter from maskingposition to uncovering position, means associating said stop bolt withsaid door to cause withdrawal of said stop bolt from bar-blockingposition only as the door closes, and means providing for remoteoperator control of said lock bolt subject to the control had by saidbar. 7

4. In combination with a jail door, a lock bolt for said door, lock boltcontrolling means, a bar arranged for movement between a positionmasking said bolt to prevent its entry into said door, and a positionuncovering said bolt to allow its entry into said its closing movement,and latch means car- 1 ried by said bar and cooperative with means onsaid door to secure the latter in closed position, as when the door isslammed, sufficiently long to insure engagement of the door by said lockbolt if its control has been set for locking.

In testimony whereof I hereby afiix my signature.

RICHARD W. BRONSON.

